Ensure the internal circulation fan is moving. If the controller case feels excessively hot, the heat exchanger may be failing.

The manual provides specific, step-by-step instructions for critical procedures like battery replacement.

This comprehensive guide serves as an essential reference for automation engineers, maintenance technicians, and plant managers to safely maintain, troubleshoot, and optimize the FANUC R-30iB controller series. 1. Safety Procedures and Precautions

Which you are working on (e.g., A-Cabinet, B-Cabinet, Mate, or Compact).